Asylum seekers must not be subjected to psychological tests to determine whether they are homosexual, EU’s top court has ruled.
Tests to determine sexual orientation are controversial, but are sometimes used when assessing asylum claims.
The European Court of Justice (ECJ) ruling is binding in all 28 EU states.
Hundreds of homosexuals fearing persecution in Africa, the Middle East and Chechnya have sought asylum in the EU, the EU Agency for Fundamental Rights reports.
The Nigerian’s claim was rejected after a psychologist’s report failed to confirm his homosexuality.
A court in Szeged, Hungary, must now reconsider his case in light of the ECJ ruling.
In December 2014 the ECJ ruled on a similar case in the Netherlands and found that sexuality tests violated asylum seekers’ human rights.
In the new ruling, the ECJ said “certain forms of expert reports may prove useful” in such cases, but added that such reports interfered with a person’s privacy. Authorities must also determine the reliability of a claimant’s statements, the judges said.
In 2013 the ECJ ruled that asylum could be granted in cases where people were actually jailed for homosexuality in their home country.
Homosexual acts are illegal in most African countries, including key Western allies such as Uganda, Nigeria, Kenya and Botswana.